But Yandex is no small potatoes.
Also, it's a mind trap to refuse to ponder the behavior of security services just because we have little information. It's their very nature not to let us know what they're doing, but scraps of information amass with time and you can connect the dots. Or perhaps you think that we should not try to think to much about these topics?
I'm sure you've heard of Russian authorities cracking down on some NGOs under the pretext of fighting software piracy. Do you really think it was about illegal Windows and Office? Or perhaps someone didn't like what these organizations were doing, but had no legal arguments against these activities? See, I have no evidence in this case whatsoever, and yet I know with 99% certainty that the real reason had nothing to do with piracy. But call me a conspiracy theorist.
But still I insist on being reasonable, do not invent imaginary problems in place of the hundreds of real ones and do not paint everything in black-and-white.
Anyway, it's good that you're so concerned about russian authorities crimes.
You know, any form of conspiracy theory is a mind trap (because it doesn't satisfy falsifiability criterion) and allows to draw any conclusions that will suffice a need for endless discussion. Are there any arguments that will convince you not all russian companies are under KGB/mafia/Putin control?